Example vimrc file from "From JetBrains to Vim" blog post

jetbrains_vimrc.vim

"=== VIM SETTINGS ====================================================================="

unlet! skip_defaults_vim
source $VIMRUNTIME/defaults.vim

syntax enable
filetype plugin indent on
set hlsearch incsearch ignorecase
set number relativenumber 
set wrap linebreak
set encoding=UTF-8

if $COLORTERM == 'truecolor'
  set termguicolors
endif

let mapleader="\<space>"

"=== PLUGINS =========================================================================="

function! s:packager_init(packager) abort
  call a:packager.add('kristijanhusak/vim-packager', {'type': 'opt'})
  "Navigation and search
  call a:packager.add('junegunn/fzf', { 'do': './install --all && ln -s $(pwd) ~/.fzf'})
  call a:packager.add('junegunn/fzf.vim')
  "Language-aware actions, linting & fixing, autocompletion
  call a:packager.add('yegappan/lsp')
  call a:packager.add('dense-analysis/ale')
  "QOL IDE-like features
  call a:packager.add('907th/vim-auto-save')
  call a:packager.add('jiangmiao/auto-pairs')
  call a:packager.add('bluz71/vim-mistfly-statusline', {'requires': 'airblade/vim-gitgutter'})
  call a:packager.add('lambdalisue/fern.vim', {'requires': [
      \ 'lambdalisue/fern-git-status.vim',
      \ 'lambdalisue/fern-renderer-devicons.vim',
      \ 'lambdalisue/fern-hijack.vim']})
  call a:packager.add('janko-m/vim-test', {'requires': 'tpope/vim-dispatch'})
  "Icons, Colours and syntax highlighting
  call a:packager.add('sheerun/vim-polyglot')
  call a:packager.add('sainnhe/sonokai')
  call a:packager.add('ryanoasis/vim-devicons')
  "Misc helper plugins
  call a:packager.add('liuchengxu/vim-which-key')
endfunction

packadd vim-packager
call packager#setup(function('s:packager_init'))

"--- WhichKey settings ----------------------------------------------------------------"
let g:mapleader = "\<Space>"
nnoremap <silent> <leader> :<c-u>WhichKey '<Space>'<CR>
set timeoutlen=200

"--- LSP settings ---------------------------------------------------------------------"
"Highlights: don't use loclist (used by ALE for diags)
let lspOptions = #{
    \ aleSupport: v:true,
    \ autoHighlight: v:true,
    \ completionTextEdit: v:true,
    \ diagVirtualTextAlign: 'after',
    \ highlightDiagInline: v:true,
    \ noNewlineInCompletion: v:true,
    \ outlineOnRight: v:true,
    \ outlineWinSize: 70,
    \ showDiagWithSign: v:false,
    \ showDiagWithVirtualText: v:false,
    \ useQuickfixForLocations: v:true,
    \ }
autocmd VimEnter * call LspOptionsSet(lspOptions)

let lspServers = [
    \ #{ name: 'gopls', filetype: ['go', 'gomod'],  path: 'gopls', args: ['serve'] },
    \ #{ name: 'pylsp', filetype: ['py', 'python'], path: 'pylsp', args: []        },
\ ]
autocmd VimEnter * call LspAddServer(lspServers)

"Enable auto selection of the fist autocomplete item
augroup LspSetup
    au!
    au User LspAttached set completeopt-=noselect
augroup END
"Disable newline on selecting completion option
inoremap <expr> <CR> pumvisible() ? "\<C-Y>" : "\<CR>"
"Use LSPHover as resolver for K command in normal mode
set keywordprg=:LspHover

"Mappings for most-used functions
nnoremap <leader>i :LspHover<CR>
nnoremap <leader>d :LspGotoDefinition<CR>
nnoremap <leader>p :LspPeekDefinition<CR>
nnoremap <leader>R :LspRename<CR>
nnoremap <leader>r :LspPeekReferences<CR>
nnoremap <leader>o :LspDocumentSymbol<CR>

"--- ALE settings ---------------------------------------------------------------------"
"Disable ALE's LSP in favour of standalone LSP plugin
let g:ale_disable_lsp = 1

"Show linting errors with highlights
" * Can also be viewed in the loclist with :lope
let g:ale_set_signs = 1
let g:ale_set_highlights = 1
let g:ale_virtualtext_cursor = 1

"Define when to lint
let g:ale_lint_on_save = 1
let g:ale_lint_on_insert_leave = 1
let g:ale_lint_on_text_change = 'never'

"Set linters for individual filetypes
let g:ale_linters = {
    \ 'go': ['gofmt', 'gopls', 'govet', 'gobuild'],
    \ 'python': ['ruff', 'mypy', 'pylsp'],
\ }
"Specify fixers for individual filetypes
let g:ale_fixers = {
    \ '*': ['trim_whitespace'],
    \ 'python': ['ruff'],
    \ 'go': ['gopls', 'goimports', 'gofmt', 'gotype', 'govet'],
\ }
"Don't warn about trailing whitespace, as it is auto-fixed by '*' above
let g:ale_warn_about_trailing_whitespace = 0
"Show info, warnings, and errors; Write which linter produced the message
let g:ale_lsp_show_message_severity = 'information'
let g:ale_echo_msg_format = '[%linter%] [%severity%:%code%] %s'
"Specify Containerfiles as Dockerfiles
let g:ale_linter_aliases = {"Containerfile": "dockerfile"}

"Mapping to run fixers on file
nnoremap <leader>L :ALEFix<CR>

"--- Fuzzy Finder Settings ------------------------------------------------------------"
"Mappings for searching within files and buffers
nnoremap <leader>f :Lines<CR>
nnoremap <leader>g :GFiles<CR>
nnoremap <leader>F :Rg<CR>
nnoremap <leader>b :Buffers<CR>

"Map buffer quick switch keys
nnoremap <leader><Tab> <C-^><CR>

"--- Fern Filetree settings -----------------------------------------------------------"
let g:fern#renderer = "devicons"
let g:fern#default_hidden = 1
let g:fern#default_exclude = '\%(\.DS_Store\|__pycache__\|.pytest_cache\|.ruff_cache\|.git\)'

nnoremap <leader>a :Fern . -drawer -toggle<CR>

"--- AutoSave settings ----------------------------------------------------------------"
set noswapfile

let g:auto_save = 1
let g:auto_save_silent = 1
let g:auto_save_events = ["InsertLeave", "TextChanged", "FocusLost"]

"--- Polyglot settings ----------------------------------------------------------------"
let g:polyglot_disabled = ['sensible']

"--- Mistfly statusline settings ------------------------------------------------------"
"Don't show the mode as it is present in statusline; always show the statusline
set noshowmode laststatus=2

"--- Vim Test settings ----------------------------------------------------------------"
nnoremap <leader>tn :TestNearest<CR>
nnoremap <leader>tf :TestFile<CR>
nnoremap <leader>ts :TestSuite<CR>
nnoremap <leader>tl :TestLast<CR>

let test#strategy = "dispatch"

"--- Colorscheme settings -----------------------------------------------------------------"
colorscheme sonokai